Jolt packing machine



Dec. 17, 1929. G. w. BLAKE 1,739,707

JOLT PACKING MACHINE Filed March 28. 1927 2 Sheets-Sheet l Dec. 17, 1929. G. w. BLAKE.

JOLT PACKING MACHINE Filed MaICI 28. 1927 2 ShQetS-Sheet 2 ofi one-half to; two. inches..

Patented Dec. 17, 1929 U'Nirnn STATES GEORGE w; BLAKE; or rwYnnzDo'.r'rn, Micrrnnen,Y Assrcnon, To enmarcanl w; BLAKE- prEN-er ofi-Trice; U,

MANUFACTURING' 00.,.01; wYANnoTTE; r/iIcinician;y A, conronnTroN-jor MICHIGAN j Join: PACKING- MAcHrnE l V'Application filed March 2.8, 1927. Serial N'o.. 171%;964..

The present invention pertains to a novel jolt packing machine' constructed' for the economical packing ot iiakecaustic, ground caustic, soapchips,v bicarbonate oil soda, chloride of lime, sugar and other material oi, kindred nature which: does not pack {irmly and sol-idly' into al receptacle by merelybeingv poured therein. The machine of this invention jolts the. receptacle soA that the material depositedl therein is packed. more tightly' than it it were merely allowed to assu-mel its natural condition and density the container;

The machine comprises essentially aI lixed .base and?. a vertically reciprocating; top.

Movement of? thel top is obtained by forcingl pressurev Huid; into: a; cylinder fixed to the: base: and receivingl a piston carried' by the top; These' posi-tions of.' the' cylinder and piston' arenot.=restricted, orthe cylinder may be carried'. by the top and the piston'. by the hase.. The flow' of. pressure fluid to the cylinderi is controlled by a reversing valve. '.llhus,x at the endl olf.' a stroke which may be regulatedl length, the valve is reversed, whereupon the'ilbw' of pressure fluid is also reversed and? the topi. proceeds to movey in the opposite direction.,

Although. the principles of the invention may be adopted invarious sizes of'machi'nes, and the stroke may also, be varied indeiinitely', a machine for handling' containers of fifteen tov twenty-tour inches in diameter preferably has an4 adjustable stroke travel A machine of this capacity can: pack three to sixtons lper hour according to the materiali? and the size of the package.

'I heinvention is fully disclosed in the following description. and' inthey accompanying drawings, in which? Figure: 1 isi a front elevation of' the device, partly inv section; y

Fig. 2 is an elevation at rightA angles to Eignref 1, partly broken away;

Figs;A and. et are sectional views oit' two interchangeable thirnbl'es; v

Fig, .5 is a sectionV on line et Figure 1;' and Fig. 6` is a. plan View..

`Reference to these views will now be made by use of like characters which are*employed to.l designate corresponding parts throughout.

The deviceisbui-lt upon ay base 1 having a number of uprightl bushings 2 andV an open top cylinder 3 fixedthereon by bolts 4 at substantially the cent-er oi' the base. Themachine further includes atop having- `depending bushings 6.. in alignment with the members 2;, and these bushings contain guide rods 7? held by' pins 8f.y The` guide rods project downwardly beyond they bushings 6' and are slildablyf received in the bushings 2.

To the lower surface of the topf is secured a hol-low piston 9f by means. ofbolts 1.0. This piston has a sliding iit in the cylinder 3 as, shownfmore clearly Figure Near the baseris proyidedfa vertical cylindrical valveI casing 11 having lateral ianges 12 bolted as at 13.` to a. flat abutment 14 on*` the cylinder 3. rEhe valve casing is/open at both ends as shown in Figure 5 andrecei-ves a valve' comprising a steinl 15 having two spaced heads 16 and 17. The forward or outermost wall of the casing has an inlet 18,V

and the rear wall has a right angular duct 19,` the' longer: leg. of? which is: parallel to the axis of the'v casing 11.. The lower end of this legv communicates with another duct 2() formed. in. the valvecasing wall and leading to the borey of the casing'. Another duct 2l is formed in the wall of the cylinder`3` in alignment with theI duct 20v andj in communication. with the interior of the cylinder. The upper end of the stem 15 is formed with a flangeA or collar 22 on which rests a flanged thimble 23. surrounding the stem and' clamped against the collar by a nut 24 threaded on they upper end of the stem. A pair of studs 25 (Figure l) are formed on the lower surface ofthe top 5 and support a transverse bar 2.6 secured thereto byy headed bolts 217 This bar an aperture 28 slidably receiving the body ofthe thimble 23 which is obviousl-yl inserted therein beforel the nut 24 is applied.A The. size of the openings 28' is such that the bars cannot pass the flange 22 or the flange of the, member 23. Y

The upper open end of the pistoni) is is comparatively short.

normally closed by a flat plug 29 screwed therein. This plug receives in turn a smaller plug 30 having a squared end 31 lodged in an aperture 32 cut through the top 5. This arrangement permits filling the piston with oil and then sealing it. The piston wall has several horizontal passages 33 which convey the lubricant to the engaging walls of the piston and its cylinder. The cylinder wall has a passage 34 formed in a broken line and establishing communication between one ofthe passages 33 and a duct 35 cut through the valve casing v11 to permit lubrication of the valve heads moving therein.

In the operation of the device, the barrel, drum or other receptacle to be filled is mounted on the top 5 and is secured thereon, if desired, in any suitable manner. During the process of filling, a pressure fluid is forced into the inlet 18. Normally the space between the valve heads 16 and 17 is in communication with the duct 19, and in this position the lower valve head crosses the duct 20 to the interior of the casing. The fluid therefore passes through duct 21 into the cylinderl 3 beneath the piston 9 so that the latter is raised. The rising of the top brings the bar 26 into engagement with the flange of the thimble 23 so that the valve is also lifted. When the space between the valve heads passes the duct 19, the flow of the pressure fluid through the valve casing isV obstructed; and when the lower head passes the duct 20, the weight on the top 5 forces the pressure i fluid .in the cylinder out through ducts 21 and 2O and the lower open end of the valve casing 11. When the bar 26 engages the flange 22, the valve is lowered to open position, and the lifting of the piston and top is repeated.

' Due to the short distance which the bar 26 may travel before engaging either the flange of the thimble 23 or the flange 22, it will be apparent that the stroke of the piston The pressure of the fluid forced beneath the piston is sufficient to cause this movement to take place in a short period of time, as a result of which the top receives a jerking movement and jolts the receptacle thereon so that the material fed into the receptacle is packed therein.

The length of the stroke andconsequently the effectiveness thereof may be varied by changing the thimble 23.Y Several such elements of'diflerent length are provided, two of which are illustrated in Figures 3 and l and designated by the characters 23a and 23". Since the lower blank end of the thimble rests on the flange 22, the length of the thimble varies the distance betweenA its flange and the top of the bar 26, whereby the length of the piston stroke is varied accordingly. Changing the thimble is equivalent to adjusting the fla-ngethereof lengthwise of t-he valve stemkl. The particular valve shown is merely illustrative of any valve capable of reversing the flow of pressure fluid with reference to a cylinder, and may be designated as a reversing or reversible valve.

The base 1 carries a pair of upright yokes 36 which slidably receive stems 37 depending from the top 5. Each stemris surrounded by a spring 38 having its upper end bearing against the top of the yoke andits lower end bearing against a disk 39 held on the stemn by lock nuts 40. ThisV` arrangement prevents the top from being thrown off the base by the momentum of its upward stroke. Further, the compression of .the spring on the upward movement of the base limits and cushions the upward stroke. The downward stroke. is cushioned by the compression of fluid Yin the cylinder 3, since this fluid is exhausted through the comparatively small ducts 21 and 20.

f Although a specific embodiment of the invention has been illustrated and described, it will be understood that various alterations in the details of construction may be made without departing from the spirit Vof the in vention as indicated by the appended claims.

What I claim is:

1. A packing machine comprisingva base.a top mounted over said base, a co-operating cylinder and piston carried by said base and top respectively, meansfor admitting pres-l sure fluid to and the exhaust of fluid from said cylinder including a reversing valve having a stem, a thimble detachably mounted on said stem, and a member carried bysaid top to engage the thimble, said thimble bef ing of greater length than the thickness of said member to provide lost motion between said member and stem, whereby said valve is moved with av short quick movement at the ends of the stroke of said piston and the length of such stroke may be adjusted by substituting thimbles of different/lengths.

2. A jolt packing machine comprising a base, a top mounted upon said base in spaced relation thereto, guides for said top, means for vertically reciprocating said top, yokes fixed to the base, springs within said yokes, and stems fixed at their upper ends to said top and passing through said Yyokes and springs vwith their lower ends engaging the lower ends of said springs to resist upward vmovement of the top.

3. A jolt `packing machineicomprising a base, a vertically movable top above said base and spaced therefrom. a cylinder on the base positioned centrally thereof, a hollow piston secured to said top to engage within said cylinder, a piston valve vto control theadmission of fluid pressure to andthe exhaust of fluid from said cylinder, and means .carried by said top for operating said valve,Y said cylinder and piston being provided with oil passages for conducting oil from said'holflow piston to said piston valve.. f

4. A jolt packing machine comprising a base, a top above and spaced from said base, cooperating guides on said base and top to guide said top in its vertical movement, a cylinder on the base located centrally thereof between said base and top, a hollow piston depending from said top to engage within said cylinder, said hollow piston forming an oil chamber having a fill opening open through said top, a closure for said fill opening,'a slide valve for controlling the admission .of fluid to and the exhaust of fluid from said cylinder, means operated by said top for operating said valve7 said piston and cylinder being formed with co-operating passages for conducting oil from said oil chamber to said valve, yokes secured to said base beneath said top, stems secured to said top and eX- tending downwardly through said yokes,

.. and springs sleeved upon said stems within said yokes to resist upward movement of said top.

In testimony whereof I aflix my signature.

GEORGE W. BLAKE. 

